Hi, The patchset adds: 1. a way of parsing custom DT properties by the driver when simplified DT parsing method is used, 2. GPIO enable control to the max77686 driver. Rationale ========= After converting drivers to simplified DT parsing method, the parsing is done by regulator core. The driver cannot longer parse any custom properties from Device Tree. Example of such special property is GPIO for enable control. Driver may want to rely on regulator core to parse most of the bindings but still need to parse one custom stuff. Additionally driver may need to perform some special activities depending on Device Tree. This is solved by adding a callback called from the core when regulator is matched from DT. The max77686 driver uses it for: 1. parsing "maxim,ena-gpios" property from regulator OF node, 2. enabling GPIO control for such regulator. Changes since v4 ================ 1. Re-work idea. Give up generic ena-gpios binding and let driver parse any custom property. Changes since v3 ================ 1. Regulator cleanup patches were applied by Mark, drop them. 2. Re-work idea by adding generic ena-gpios binding. Changes since v2 ================ Re-work the board file support removal after Javier's comments: use new DT style parsing. This imposes a lot of changes. 1. Add "of_compatible" for regulator drivers. 2. Provide backward compatibility if such "of_compatible" is not present. The driver will search for regulators node and use it as dev->of_node. Everything should be bisect-friendly. 3. New patches: 1, 2, 3, 5, 13 and 14. 4. Because of new style DT parsing it is much easier to put "gpio" properties in regulators top node (not in each regulator). This will be also new-gpio-lib friendly. Changes since v1 ================ 1. Add patch: 1/8 "regulator: max77686: Consistently index opmode array by rdev id". 2. Remove patch "regulator: max77686: Make regulator_desc array const" (applied). 3. Re-work patches removing from regulators board file support (2/8 and 3/8). Parse regulators with of_regulator_match() at once, remove num_regulators. 4. Patch 4/8: Add depends on OF to mfd/Kconfig. Add Javier's reviewed-by. 5. Patch 5/8: Add Javier's reviewed-by. 6. Patch 6/8: Add depends on GPIOLIB to regulator/Kconfig. Rename "external control" to "GPIO control" and "ext_control_gpios" to simpler "gpios". I tried to use new GPIO API but it ended with more problems https://lkml.org/lkml/2014/10/29/239 Best regards, Krzysztof Krzysztof Kozlowski (5): regulator: Copy config passed during registration regulator: Allow parsing custom properties when using simplified DT parsing regulator: max77686: Add GPIO control mfd/regulator: dt-bindings: max77686: Document gpio properties ARM: dts: exynos4412-trats: Switch max77686 regulators to GPIO control Documentation/devicetree/bindings/mfd/max77686.txt | 14 +++++ arch/arm/boot/dts/exynos4412-trats2.dts | 25 ++------ drivers/regulator/core.c | 20 +++++-- drivers/regulator/internal.h | 2 + drivers/regulator/max77686.c | 70 ++++++++++++++++++++-- drivers/regulator/of_regulator.c | 11 ++++ include/linux/regulator/driver.h | 13 ++++ 7 files changed, 126 insertions(+), 29 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
